<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>图片</title>
    <link rel="stylesheet" href="../css/bootstrap.min.css">
</head>
<body>
<img class="img-rounded" src="../img/image1.jpg" width="20%" height="20%">
<img class="img-circle" src="../img/image1.jpg" width="200px" height="200px">
<img class="img-thumbnail" src="../img/image1.jpg" width="200px" height="200px">
<img src="../img/image1.jpg" width="200px" height="200px">
</body>
</html>